Maybe this will help:
According to this, it seems that you can’t use the CUL USB Stick directly in OH2 (you will need to install Homegear first and then use the Homematic binding)
&
http://docs.openhab.org/addons/bindings/homematic/readme.html
Maybe this will help:
According to this, it seems that you can’t use the CUL USB Stick directly in OH2 (you will need to install Homegear first and then use the Homematic binding)
&
http://docs.openhab.org/addons/bindings/homematic/readme.html